Philadelphia Solar Dark Phenex Bifacial 400W

PV Product Performance

Power (measured in watts) and efficiency (how well panels convert sunlight to electricity) are some of the most common metrics used to compare solar panel products. While they are not the only means of comparison, they are important determinants in how much electricity you can produce with a solar panel system. Metrics like power tolerance and temperature coefficient are also important ways to analyze the potential performance of solar panels under the different conditions they will experience over their lifetime. Learn how panels from different manufacturers stack up against one another in our updated article about the best solar panels on the market.

Rated Power	400
Rated Power per Cell	3.7
Efficiency	20.48
Temperature Coefficient	PMax: -0.341, Voc: -0.291
Resiliency	Hail, Snow, Wind

Warranty Specifications

Solar panels generally come with an output warranty covering the energy production of the panel, and a materials warranty protecting you against undue wear and tear on your equipment. Learn more about solar panel warranties.

Output Warranty Term	25
Output at End of Warranty Term	86
Materials Warranty Term	12

Solar Panel Aesthetics

Solar panels typically have black or blue cells, white, silver, or black backsheets, and silver or black frames. Bifacial solar panels are one exception to these rules, as they have transparent backsheets.

Cell Colors	black
Frame Colors	black
Backsheet Colors	black

Physical Characteristics

The physical characteristics of a solar panel have an impact on the product’s performance. For example, metrics like efficiency and wattage are based on the type, size, and number of solar cells used in a panel.

Cell Type	Monocrystalline
Panel Dimensions	D:30, L:1722, W:1134
Cell Count	108
Connector Type	1.2m Solar Cables with MC4 interconnection

Manufacturer Location

Solar panels are made all around the world. While the bulk of solar panel manufacturers are based in Asia, companies in the United States, Canada, and other countries also produce high-quality photovoltaics.